3rd-party/linux-kernel-module-cheat
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qemu: document GDB user mode, fix some stuff

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Ciro Santilli 六四事件 法轮功
2018-10-29 22:00:02 +00:00
parent a29b5a41fb
commit b5b646ffd4
4 changed files with 52 additions and 16 deletions
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35
run-gdb
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@@ -11,11 +11,12 @@ import common
defaults = {
'after': '',
'before': '',
'sim': False,
'no_continue': False,
'kgdb': False,
'no_lxsymbols': False,
'break_at': None,
'kgdb': False,
'no_continue': False,
'no_lxsymbols': False,
'sim': False,
'user': None,
}
def main(args, extra_args=None):
@@ -34,26 +35,27 @@ def main(args, extra_args=None):
args = common.resolve_args(defaults, args, extra_args)
after = shlex.split(args.after)
before = shlex.split(args.before)
if args.no_lxsymbols or args.baremetal is not None:
lx_symbols = []
else:
lx_symbols = ['-ex', 'lx-symbols {}'.format(common.kernel_modules_build_subdir)]
if args.break_at is not None:
break_at = ['-ex', 'break {}'.format(args.break_at)]
else:
break_at = []
if args.baremetal is None:
image = common.vmlinux
allowed_toolchains = ['buildroot', 'crosstool-ng', 'host']
linux_full_system = (args.baremetal is None and args.user is None)
if args.user:
image = args.user
elif args.baremetal:
image = args.baremetal
else:
image = common.image
image = common.vmlinux
if args.baremetal:
allowed_toolchains = ['crosstool-ng', 'buildroot', 'host']
else:
allowed_toolchains = ['buildroot', 'crosstool-ng', 'host']
cmd = (
[common.get_toolchain_tool('gdb', allowed_toolchains=allowed_toolchains)] +
before +
['-q']
)
if args.baremetal is None:
if linux_full_system:
cmd.extend(['-ex', 'add-auto-load-safe-path {}'.format(common.linux_build_dir)])
if args.sim:
target = 'sim'
@@ -85,7 +87,9 @@ def main(args, extra_args=None):
#
# The lx-symbols commands gets loaded through the file vmlinux-gdb.py
# which gets put on the kernel build root when python debugging scripts are enabled.
cmd.extend(['-ex', 'continue'] + lx_symbols)
cmd.extend(['-ex', 'continue'])
if not args.no_lxsymbols and linux_full_system:
cmd.extend(['-ex', 'lx-symbols {}'.format(common.kernel_modules_build_subdir)])
cmd.extend(after)
return common.run_cmd(cmd, cmd_file=os.path.join(common.run_dir, 'run-gdb.sh'), cwd=common.linux_build_dir)
@@ -115,6 +119,9 @@ See: https://github.com/cirosantilli/linux-kernel-module-cheat#gdb-builtin-cpu-s
parser.add_argument(
'-X', '--no-lxsymbols', default=defaults['no_lxsymbols'], action='store_true'
)
parser.add_argument(
'--user', default=defaults['user'],
)
parser.add_argument(
'break_at', nargs='?',
help='Extra options to append at the end of the emulator command line'